Cliffe



(No Model.)

J. A. SUTCLIFPE. SHEET METAL BOBBIN.

No. 602,183. Patented Apr. l2, 1.898.

Mdm, A

' UNITED STATES PATENT OFFICE.

JAMES ANDER'ION SUTCLIFFE, OF BLACKBURN, ENGLAND, ASSIGNOR TO HIMSELF, AND GEORGE PALEY, OF PRESTON, ENGLAND.

SHEET-METAL soBslN.

SPECIFICATION forming part of Letters Patent No. 602,183, dated April 12, 1898. Application filed February 25,1898. Serial No. 671,656. (No model.)

To @ZZ whom it may concern:

Be it known that I, JAMES ANDERTON SUT- CLIFFE, a subject of the Queen of Great Britain and Ireland, residing at Blackburn, in

the county of Lancaster, England, have invented Improvements in Sheet-Metal Bobbins Used in Machinery for Preparing Cotton and other Fibrous Substances, of which the following is a specilication.

1o This invention relates to the construction of sheet-metal bobbins used in machinery for preparing cotton and oth erfibrous substances, and has for its main object the strengthening of the body part of such bobbins-that is to v,15 say, to render them less compressible or less susceptible to injury through knocks or rough usage. In carrying out my invention the body part of the bobbin is formed by inserting a series of thimbles resembling flat-bottomed pans, which may conveniently be produced bythe processV known as stampingf one over the other.` Each thimble near its closed end is slightly reduced in diameter, leaving a shoul- 2 5 der against which" the edge of the open end of the adjoining thimble when slipped or pressed ont-o the reduced part rests, and the several thimbles at theirjuncture with each other are fastened together by soldering.

3o The bottom of each thimble has punched through it a central hole large enough for the spindle to pass through, thus leaving the interior of the body partv of the bobbin with a seriesof inwardly-projecting iianges resem-l bling and answering the same purpose as the strengthening-rings frequently used in the iiues of horizontal steam-boilers. The top and bottom of the bobbin are preferably of Wood sheathed with sheet metal fitting within or onto their adjoining thimbles and being soldered thereto.

In the accompanying drawings, Figure lis a sectional view of one of the flat-bottomed pans or cups having a central hole d. Fig. 2

is a cross-sectional View of my improved sheetmetal bobbin as it is preferred to make it after practical experiment. Instead of making each thimble or pan with an .inwardly-fiat projecting flange I prefer to turn the ange in- 5o wardly, as shownat the said Fig. 2 of the drawings. l Fig. 3 is a sectional plan view of the bottom part of the bobbin shown at Fig.

2, the section being taken on the line d d of that figure. Fig. 4 shows, partly in elevation and partly in vertical section, a modified construction of bobbin. Fig. 5 is a horizontal section thereof on the line y y of Fig. 4.

At Fig. 1 the iiange b is shown in solid black lines in the form which obtainswhen it is originally stamped.

d is a central hole punched through subsequently. In practice I curl' over the iange b, as indicated diagrammatically by broken lines at Fig. 1 and by solid lines at Fig. 2,. and afterward reduce the. diameter under pressure at `the lower end ofthe thimble or pan, so as to leave a shoulder d.

e is the wooden top, and f the Wooden bottom, of the bobbin, in' each ease sheathed wit-h sheet metalg. 7o

Instead of attaching the several thimbles together by means of soldering I may fasten kthem together by the process known to sheetmetal workers as spinning or closing The strengthening of the improved bobbin is increased not only by thev inner iianges or rings b, but by forming the several thimbles by the process of stamping, (which therebygreatly hardens the metal,) whereby considerable extra strength as Well as a true cylin- 8o drical form is imparted to them.

Instead of employing wood for the bottom of the bobbin, sheathed with sheet metal g,

I may employ a steel ring h, as shown at Figs. 4 and 5. 85

1. A bobbin comprising a number of sheetmetal thimbles or pans having their adjacent ends secured one withinthe other and each having an internal strengthening flange or 9o ring, substantially as described.

2. A sheet-metal bobbin comprising a number of thimbles or pans having their adjacent ends secured one within the other and each formed with an internal inwardly-extending strengthening-flange bent to a more or less tubular shape, substantially as described.

3. A bobbin comprising a number of stamped sheet-metal thimbles or pans each having one of its endsreduced in diameter roo and provided at that end with an inwardlyprojecting flange bent to a tubular shape, the

top and a wooden bottom each carried by a sheet-metal sheath secured to the end of the adjacent thimble or pan, substantially vas described.

Signed at Preston, in the county of Lancaster, England, this 15th day of February, 1898.

JAMES ANDERTON SUTCLIFFE.

Witnesses: i

EDWARD BARTER, YATES WILLIAM BOOTH. 

